CN218676626U - Full-insulation separable gapless lightning arrester for live working - Google Patents

Abstract

The utility model discloses a full insulating detachable zero clearance arrester of live working relates to detachable zero clearance arrester technical field, include: the lightning arrester comprises a puncture type detachable insulating wire clamp, a high-voltage lead, a light insulating cavity, a metal bracket, an insulating bracket, a disconnector connecting support, a lightning arrester body, a separator and a disconnector, wherein an upper contact piece is connected with a drainage wire connection pile head, one end of the high-voltage lead is connected to the upper end of the drainage wire connection pile head, the other end of the high-voltage lead is connected to the puncture type detachable insulating wire clamp, the upper end of the lightning arrester body is connected with the upper contact piece through an upper contact, a contact piece fixing ring is fixed in the light insulating cavity, a contact piece is fixed on the contact piece fixing ring, the contact piece fixing ring is fixed at one end of the metal bracket, the other end of the metal bracket is fixed with the insulating bracket, and the disconnector connecting support is fixed on the metal bracket. The utility model discloses arrester body and disconnector are installed and removed in available insulating bar live working, improve installation and maintenance efficiency.

Description

Full-insulation separable gapless lightning arrester for live working

The application is a divisional application of a utility model patent with a parent case name of 'live working full insulation separable gapless arrester'; the application number of the parent application is as follows: cn202122383246.X; the application date of the parent application is as follows: 2021-09-24.

Technical Field

The utility model relates to a detachable zero clearance arrester technical field especially relates to a full insulation detachable zero clearance arrester of live working.

Background

At present, lightning arresters on overhead distribution lines are all installed on outdoor line iron cross arms, and national standard HY5W type composite coat metal oxide gapless lightning arresters are lightning protection products with the largest application in line lightning protection at present, namely the lightning arresters are fixed on the line cross arms by fastening bolts and must be connected by branch leads. When the annual preventive detection is maintained or the lightning strike is damaged, the lightning arrester is detached by climbing a pole, detaching a wire and screwing a nut in power failure, and the lightning arrester is installed and fixed on a line cross arm after the lightning arrester is tested to be qualified or replaced. The zero clearance arrester has easy ageing damage risk and needs the periodic maintenance to change because it bears system voltage in system operation for a long time, because the arrester is installed and is difficult to look over after the damage of circuit eminence, waits to find that the circuit takes place ground connection or just can know the fault point through patrolling the line and overhaul, and the mode isolated system electric current that adopts the disconnector additional to install is avoided ground connection in some places, patrols and examines for the circuit and provides the demonstration. The main defects are that the lightning arrester or the disconnector can only be replaced by waiting for power failure once being damaged, lightning stroke and overvoltage damage can not continue to play a role in protection once again during replacement, and the application of the arm car to carry out charged replacement can consume a large amount of manpower and material resources and is limited by terrain.

From this, it can be known that the live working of the existing arrester is not yet mature.

Therefore, there is a need in the market for a fully insulated separable gapless lightning arrester for live working, which solves the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a full insulating detachable gapless arrester of live working for solve the technical problem who exists among the above-mentioned prior art, only with the help of insulating bar just can install fast or dismantle this arrester body and disconnector of live working.

In order to achieve the above object, the utility model provides a following scheme:

the utility model discloses a full insulating detachable gapless arrester of live working, include: puncture formula can load and unload insulating fastener (1), high-voltage lead (2), light-duty insulating cavity (3), metal bracket (4), insulating bracket (5), disconnector link bracket (6), arrester body (9), separator (13) and disconnector (14), the inside of arrester body (9) is equipped with contact piece (19), it is connected with drainage line pile head (18) that continues to go up contact piece (19), the one end of high-voltage lead (2) is connected in the upper end that the drainage line pile head (18) continues, the other end of high-voltage lead (2) connect in on puncture formula can load and unload insulating fastener (1), light-duty insulating cavity (3) inside can be used for fixing arrester body (9), the upper end of arrester body (9) through last contact (7) with last contact piece (19) electricity is connected, light-duty insulating cavity (3) internal fixation has contact piece fixed ring (17), fixed ring (17) is fixed with contact piece (16) on fixed ring (17), fixed ring contact piece (17) is fixed in the one end of metal bracket (4), the other end of metal bracket (4) is fixed with insulating bracket (5), insulator bracket (14) and insulator bracket (9) and insulator carrier (14) can break away from the insulator line, the disconnector (14) is electrically connected to the disconnector connecting support (6), and the disconnector connecting support (6) can be used for fastening to a track rail cross arm.

Preferably, the drainage wire connecting pile head (18) penetrates through the top end of the light insulating cavity (3) and the upper contact piece (19) to form a whole in a threaded mode, a rubber sealing ring is padded between the drainage wire connecting pile head (18) and the upper contact piece (19), and an insulating sheath (12) is sleeved outside the drainage wire connecting pile head (18).

Preferably, the upper end of the lightning arrester body (9) is provided with an upper insulating waterproof piston ring (8);

the lower end of the lightning arrester body (9) is connected with a contact ring (10), and a lower insulating waterproof piston ring (11) is installed on the lower portion of the contact ring (10).

Preferably, the contact ring (10) is connectable with the disconnector (13), and the disconnector (14) is connected with a lower end screw hole of the arrester body (9) by a stud bolt passing through the disconnector (13), the contact ring (10), and the lower insulating waterproof piston ring (11) for achieving electrical conduction from the arrester body (9) to the disconnector (14).

Preferably, a plurality of sheds are arranged on the outer side of the light insulating cavity (3).

Preferably, the separator (14) adopts a thermal explosion separator;

the lightning arrester body (9) is made of zinc oxide.

Preferably, the puncture type detachable insulating wire clamp (1) comprises a drainage wire connecting pile head (1.6) and a metal wire clamp body (1.10);

the drainage wire splicing pile head (1.6) can be used for being connected with one end of the high-voltage lead (2);

be connected with screw rod (1.8) on metal clamp line body (1.10), the top of screw rod (1.8) is fixed with movable line ball piece (1.9), the V-arrangement department of movable line ball piece (1.9) is equipped with three thorn tooth (1.2), thorn tooth (1.2) are stabbed inside the insulated wire, the bottom of screw rod (1.8) is equipped with ring bolt (1.3), screws up ring bolt (1.3) and can drive movable line ball piece (1.9) port automatic closure.

Preferably, a sealing ring (1.7) is padded between the drainage wire connecting pile head (1.6) and the metal wire clamping body (1.10);

the outside cover of drainage wire continuation pile head (1.6) is equipped with pile head insulating boot (1.5).

Preferably, the puncture type detachable insulating wire clamp (1) is provided with an installation hanging ring (1.4);

a spring washer (1.1) is arranged between the movable line pressing block (1.9) and the top end of the screw rod (1.8).

Preferably, a screw rod outer sleeve (1.12) is arranged on the outer side of the screw rod (1.8), and the screw rod outer sleeve (1.12) can stretch when the annular screw rod (1.3) is screwed;

an insulating sheath (1.13) is arranged outside the movable wire pressing block (1.9);

a surface insulating layer (1.14) is arranged on the outer side of the metal wire clamping body (1.10);

the outer surface of the annular bolt (1.3) is provided with an annular bolt outer surface (1.15).

The utility model discloses for prior art gain following technological effect:

the utility model can assemble and disassemble the arrester body and the disconnector by the live working of the insulating operating rod, thereby improving the installation and maintenance efficiency; the disconnector can temporarily isolate power frequency current and indicate fault points, and reduces loss caused by power failure due to grounding short circuit; the disconnector connecting bracket is convenient for the disconnector to be separated and replaced in hot-line work; the device is fully insulated, and the insulation process of the line is improved; the puncture type detachable insulating wire clamp is convenient for being assembled and disassembled in an electrified way, and the insulating wire does not need to be peeled, so that the installation efficiency and the circuit insulation are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is the structure diagram of the fully insulated separable gapless lightning arrester for live working of the embodiment of the invention.

Fig. 2 is a connection relation diagram of the arrester body in the fully insulated separable gapless arrester for live working according to the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a puncture type detachable insulated wire clamp in a fully insulated separable gapless arrester for live working according to the embodiment of the utility model.

In the figure: 1-a puncture type detachable insulated wire clamp; 1.1-spring washer; 1.2-piercing teeth; 1.3-ring bolt; 1.4-installing a hanging ring; 1.5-pile head insulating cover; 1.6-connecting the drainage wire with the pile head; 1.7-sealing ring; 1.8-screw; 1.9-movable line pressing blocks; 1.10-metal wire clamping body; 1.12-screw rod outer sleeve; 1.13-outer surface; 1.14-surface insulating layer; 1.15-outer surface; 2-high voltage lead; 3-light insulating cavity; 4-a metal bracket; 5-an insulating bracket; 6-a disconnector coupling bracket; 7-upper contact; 8-upper insulating waterproof piston ring; 9-a lightning arrester body; 10-a contact ring; 11-lower insulating waterproof piston ring; 12-an insulating sheath; 13-a separator; 14-a detacher; 15-elastic tension spring; 16-a contact pad; 17-a contact piece fixing ring; 18-connecting the drainage wire with the pile head; 19-upper contact pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing a full insulating detachable gapless arrester of live working for solve the technical problem who exists among the above-mentioned prior art, only with the help of insulating bar just can install fast or dismantle this arrester body and disconnector of live working.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 to 3, the present embodiment provides a live-working all-insulated separable gapless arrester, comprising: the lightning arrester comprises a puncture type detachable insulating wire clamp 1, a high-voltage lead 2, a light insulating cavity 3, a metal bracket 4, an insulating bracket 5, a disconnector connecting support 6, an upper contact 7, an upper insulating waterproof piston ring 8, a lightning arrester body 9, a contact ring 10, a lower insulating waterproof piston ring 11, an insulating sheath 12, a disconnector 13, a disconnector 14, an elastic tension spring 15, a contact piece 16, a contact piece fixing ring 17, a drainage wire connecting pile head 18, an upper contact piece 19 and the like. The overvoltage protection circuit is mainly applied to overvoltage protection of an overhead distribution line. The installation hanging ring 1.4 on the puncture type detachable insulated wire clamp 1 with the drainage wire on the belt can be operated by the live-line work of the insulated operating rod and directly hung and connected on the insulated conductor without manually and laboriously peeling and installing the insulated conductor on the rod, and the insulating layer of the conductor is not damaged; the plug-in type arrangement can be used for quickly overhauling and replacing the assembly of the plug-in separator 13 of the insulating operating rod for hot-line work, the arrester body 9, the disconnector 14 and the like, so that the inconvenience caused by power failure is reduced, and the assembling and overhauling efficiency is improved; the light insulating cavity 3 is made of PC materials with excellent electrical and mechanical properties, so that the weight of the whole device is greatly reduced, and meanwhile, the light insulating cavity has an explosion-proof effect, reduces the cost and is convenient to construct.

One end of the high-voltage lead 2 is pressed at the upper end of the drainage wire connecting pile head 18, the other end of the drainage wire connecting pile head 18 penetrates through the top end of the light insulating cavity 3, is connected with the inside of the light insulating cavity and is connected with the upper contact piece 19 in a threaded mode to form a whole, a rubber sealing ring is arranged between the drainage wire connecting pile head 18 and the upper contact piece 19 in a padding mode, and the insulating sheath 12 is tightly sleeved outside the drainage wire connecting pile head 18 to prevent water and vapor salt mist from entering the cavity to affect the electrical performance of the lightning arrester body 9.

The light insulating cavity 3 is of a tower-shaped structure, the large umbrella skirt and the small umbrella skirt are matched to meet the climbing distance requirement, the umbrella skirt at the uppermost part is larger than all umbrella skirts at the lower part, the functions of preventing the rain-proof curtain from being polluted and preventing drooping icicles from being adhered to other umbrella skirts are achieved, and the light insulating cavity also has a certain function of blocking snowing, so that the lightning arrester body 9 is more reliably insulated in natural disasters; the umbrella skirt that is located its below distributes with the mode of big umbrella skirt and little umbrella skirt is crisscross, and big or small umbrella skirt root adopts the circular arc transition in order to strengthen cavity intensity, plays explosion-proof effects, prevents that arrester body 9 from damaging to explode the piece and splash, and arrester body 9 explodes in case breaks down, and the metallic oxide who splashes easily causes circuit ground fault together with breakable porcelain overcoat, injures other electrical equipment and passerby.

The upper part of the lightning arrester body 9 is additionally provided with an upper insulating waterproof piston ring 8 for sealing, a lower end screw hole of the upper contact 7 is screwed and pressed on the upper end surface of the insulating waterproof piston ring 8, and the upper contact 7 is in close elastic electro-dynamic contact with the upper contact piece 19 to ensure stable electrical connection.

The lower end of the contact ring 10 and the separator 13 are tightly sealed and provided with a lower insulating waterproof piston ring 11 made of rubber vulcanization with elasticity and sealing performance, the lower insulating waterproof piston ring 11 can be driven when the lightning arrester body 9 is inserted, and the lower insulating waterproof piston ring is movably matched with the inner wall of the light insulating cavity 3 in an insulating sealing mode so as to prevent water vapor and salt mist from invading the light insulating cavity 3 from the lower part and keep a good electrical environment inside the cavity.

It is a whole to fill up the sealing washer spiro union between metal bracket 4 and the solid fixed ring 17 of contact piece, light-duty insulating cavity 3 is lived to metal bracket 4 staple bolt, adopt metal material can increase its intensity and electric conductivity, the diaphragm of metal bracket 4 another side end and the one end spiro union of insulating bracket 5, the other end of insulating bracket 5 can be installed on the circuit cross arm, disconnector bursts open and drops after lightning arrester body 9 damages, power frequency current in the isolated system, insulating bracket 5 increases ground point and disconnector below fracture distance, alleviate lightning arrester body 9 and the influence of disconnector damage back to the circuit operation.

Two holes are formed in the side face of the contact ring 10 and are in threaded connection with the separator 13 to form a whole, and a step type structure is arranged on the contact ring 10, so that the contact piece can play a limiting role when being clamped tightly.

The bottom of the contact piece fixing ring 17 made of metal material with good conductivity is uniformly provided with screw holes for fixing the contact piece 16, the contact piece 16 made of metal material with good conductivity and better elasticity is closely, elastically and constantly in electrical contact with the contact ring 10 so as to ensure normal through-flow, the side surface of the contact piece fixing ring 17 is provided with screw holes for being in threaded connection with the metal bracket 4, namely the metal bracket 4 at the outer side, the light insulating cavity 3 in the middle and the contact piece fixing ring 17 at the inner side are in threaded connection into a whole.

The outer diameter of the lower end of the lightning arrester body 9 is closely matched with the inner wall of the contact ring 10, a metal electrode at the bottom of the lightning arrester body 9 is closely and electrically contacted with the end part of the contact ring 10 through screw connection, the lower end of the lightning arrester body 9 is conical, the connection is more compact and firm by using the flexibility of a silicon rubber jacket, the contact ring 10 and the separator 13 are connected and are screwed into a whole through a conical screwing sealing structure, and the separator 13 is made of high-strength ultraviolet-resistant PC insulating material; the lower part of the separator 13 is in a conical guide shape, and the waist part of the separator is provided with a symmetrical cylindrical plugging operation lock catch, so that the arrester body 9 can be conveniently plugged and unplugged in the guide direction of the insulating operation rod.

The detacher 14 is screwed with a stud bolt, penetrates through the separator 13, penetrates through the contact ring 10 and the lower insulating waterproof piston ring 11 and is screwed on a screw hole at the lower end of the lightning arrester body 9 to be integrally and electrically connected. When the lightning arrester body 9 is damaged, the disconnector 14 is disconnected, and the effect of isolating the power frequency current in the system is achieved.

The release device 14 is a thermal explosion type release device which is more stable and less affected by the environment than a thermal melting type release device.

The light insulating cavity 3 is formed by compression molding of a light hard anti-UV grade PC insulating material which has high strength, good electrical performance, better explosion resistance and aging resistance and greatly reduces the weight of the whole device.

The lead of the disconnector 14 is screwed on the disconnector connecting support 6, the disconnector connecting support 6 can be screwed on the line cross arm by operating live working with an insulating operating rod, the metal bracket 4 and the insulating bracket 5 are screwed into a whole, the metal bracket 4 meets the requirement of strength stability, and the insulating bracket 5 meets the insulation requirement after the disconnector 14 is disconnected.

The upper and lower structures of the light insulating cavity 3 have certain taper to enable the light insulating cavity 3 and the arrester body 9 to have better sealing structures, the upper narrow and lower wide structures of the light insulating cavity 3 enable the arrester body 9 to be inserted into the light insulating cavity 3 to be tighter and tighter, and the bottom of the contact ring 10 is integrally sealed by the lower insulating waterproof piston ring 11.

The wire end of the high-voltage drainage 2 is pressed on a puncture type detachable insulating wire clamp 1 made of a metal material with good electric conductivity, a pile head insulating cover 1.5 made of a soft and elastic rubber product material is tightly and integrally covered to prevent wind, rain and moisture from invading, an operation rod can be sleeved on an installation hanging ring 1.4 in a live-line operation mode, a bayonet of the puncture type detachable insulating wire clamp 1 is conveniently screwed on a high-voltage wire, a ring bolt 1.3 is screwed to drive a movable wire pressing block 1.9 to tightly push the insulating wire, three puncture teeth 1.2 can be uniformly punctured into the insulating wire to ensure stable electrical connection, the length of the puncture teeth is proved through multiple tests, the wire is not damaged while the sufficient electrical connection is ensured, the installation of the wire is simplified in a puncture mode, the insulating layer of the wire is not peeled, the exposed point is reduced, and the full insulation of the line is favorably realized.

The drainage wire 2 end of a thread and the drainage wire on the puncture type detachable insulating wire clamp 1 are connected with the pile head 1.6 in a crimping mode to form a whole, the pile head is covered with the pile head insulating cover 1.5 in a whole to be sealed, the drainage wire on the puncture type detachable insulating wire clamp 1 is connected with the pile head 1.6 and the metal wire clamp body 1.10 in a threaded mode, a sealing ring 1.7 is arranged between the drainage wire connection pile head 1.6 and the metal wire clamp body 1.10 in a cushioning mode, and the phenomenon that the joint enters water vapor and salt stain to cause corrosion after a long time is prevented.

The outer surface 1.15 of an annular bolt on the puncture type detachable insulating wire clamp 1 is made of hard insulating materials to play an insulating protection role, an insulating sheath 1.13 is made of soft insulating materials to ensure that the insulating sheath is in tight contact with an insulated wire, a mounting hanging ring 1.4 and a surface insulating layer 1.14 of a metal wire clamp body 1.10 are made of hard insulating materials to play an insulating operation rod operation role, an outer sleeve 1.12 of a screw rod 1.8 is made of soft insulating materials, the insulating operation rod is hung at the position of the mounting hanging ring 1.4 and is lapped on the insulated wire, the screw rod 1.3 is screwed to drive a movable wire pressing block 1.9 port to be automatically closed and is tightly connected with an upper end body 1.10 to the insulated wire, the screw rod outer sleeve 1.12 is made of soft insulating materials, the screw rod outer sleeve 1.12 can stretch when the annular screw rod 1.3 is screwed, three puncture type detachable insulating wire clamp 1 are provided with 1.2 stabs into the insulated wire, 3 stabs ensure stable electrical connection, a spring washer 1.1 plays a looseness prevention role, and good lightning stroke flow rate is achieved when overvoltage occurs.

The lightning arrester comprises an arrester body 9 which is formed by combining an upper contact 7, an upper insulating waterproof piston ring 8, a contact ring 10 and a lower insulating waterproof piston ring 11, the lightning arrester body is inserted into a light insulating cavity 3, the upper contact 7 is tightly and elastically contacted and inserted into an upper contact piece 19, when the lightning arrester body is inserted in place, the step of the contact ring 10 and the contact piece 16 have obvious clamping collision feeling, the upper end of a drainage wire connecting pile head 18 screwed at the top end of the light insulating cavity 3 is in pressure joint with one end of an upper drainage wire 2 and is integrally and hermetically sleeved by an insulating sheath 12, the other end of the drainage wire 2 is in pressure joint with a drainage wire connecting pile head 1.6 on a puncture type detachable insulating wire clamp 1, and the puncture type detachable insulating wire clamp 1 can be hooked on a circuit insulating wire; the metal bracket 4 hooped on the light insulating cavity 3 and the insulating bracket 5 are connected into a whole in a screw joint mode, the other end of the insulating bracket 5 can be installed on a circuit iron cross arm, the other end of the insulating bracket 5 can be matched with a live working installation support to be installed on the circuit iron cross arm in a live working mode, then the disconnector connecting support 6 and the disconnector drainage wire are installed on the circuit iron cross arm, and therefore the whole device is installed on a circuit.

The product is mainly applied to line overvoltage protection. The arrester body 9 can be installed or detached by the live-line operation of the insulating operating rod; but lightning arrester body 9 carries out overhaul fast, plug change with insulating bar in the light-duty insulating cavity 3 for live working, reduces a great deal of inconvenience that the outage brought, improves the efficiency of installing additional and overhauing.

When a circuit is damaged by lightning stroke, lightning stroke current reaches the drainage wire 2 through the thorn teeth 1.2 on the puncture type detachable insulating wire clamp 1, the lightning stroke current reaches the lightning arrester body 9 along the drainage wire 2, the lightning arrester body 9 made of zinc oxide material is in a low-resistance state under a high-voltage state, the lightning current is conducted to a grounding wire through the lead of the disconnector 14, the lightning arrester body 9 is recovered to a high-resistance state after the lightning stroke current is discharged to the ground, and the lightning arrester also has a good prevention and control effect on operation overvoltage due to the absence of gaps.

When the arrester is damaged, the arrester body 9 is pulled out by the operation locking buckles which are used for clamping two sides of the separator 13 through the insulating operation rod, the new arrester body 9 is replaced by the operation rod to continue running, the ground wire does not need to be hung and can be directly plugged and pulled out, the arrester on the traditional line can be replaced only after power failure, or the bypass ground wire is hung and replaced to consume a large amount of manpower and material resources, the arrester cannot play a role in protecting the line during damage, certain economic loss can be caused by power failure, and therefore live working is particularly important.

The light insulating cavity 3 is made of excellent PC material, has excellent electrical insulating property, very high mechanical strength, excellent explosion-proof property, very good waterproof and stain-resistant property, and insulating engineering material which greatly lightens the weight of the whole device, is arranged at the high position of a line, and once an old lightning arrester breaks down, the splashed metal oxide and the fragile porcelain jacket easily cause line grounding faults to hurt other electrical equipment and passerby.

The light insulating cavity 3 is designed to have the largest uppermost umbrella skirt, so that the protective effect on the lower umbrella skirt can be well achieved, tests show that the first umbrella skirt can better prevent the surface flashover by adopting the largest mode, and the light insulating cavity has a good effect on blocking an electric channel formed by rain curtains, icicles and snowing.

The upper insulating waterproof piston ring 8 is similar to the structural design of an automobile piston and is formed by injecting hard insulating materials, two grooves are formed in the circular arc surface, soft and elastic rubber rings are installed, the sealing effect and the insulating effect are achieved, as a plurality of sealing insulators are arranged in the light insulating cavity, the high voltage at the top end of the lightning arrester body 9 is prevented from creeping from the inside of the cavity, the creeping can be conducted from the outside of the light insulating cavity 3 with an umbrella skirt,

the high-voltage lead 2 adopts a soft rubber insulation thin copper wire, the angle and the direction can be conveniently adjusted and hung when the puncture type detachable insulation wire clamp 1 is hung, and obvious prompt sound can be generated after the torque operating rod is installed in place, so that the phenomenon that the thorn teeth penetrate into the insulation wire too deeply to damage the wire and the poor contact is prevented.

Insulating bracket 5 can direct mount on the circuit iron cross arm, also can be equipped with suitable electrified installing support and install, and whole device just can realize quick electrified installation like this, and live working has all been accomplished no matter just adorn or overhaul, has avoided the loss that the outage brought.

The light insulating cavity 3 is made of hard high-strength PC material, so that birds can be prevented from pecking, and particularly, in recent years, the environment is improved, and the birds are increased, so that certain damage to the operation of a circuit is caused.

The design is intended to: the weight is reduced and the explosion-proof performance is enhanced; the insulation grade of the line is improved; the quick live-wire operation is realized, the product can be assembled, disassembled, maintained and replaced without climbing a pole, the operation can be finished on the ground by an insulating operating rod, the labor intensity is reduced, and the safety of operation and maintenance is improved; during installation, the live working puncture mode is adopted to connect the wires, so that the insulating layer of the wires is not damaged, and the full insulation of the circuit is facilitated; the lightning arrester body 9 is arranged in the light insulating cavity 3, so that the invasion of sunlight, rain, snow, haze and salt mist is avoided, the lightning arrester is more stable, and the service life is longer; the number of line faults and time are reduced; the device is simplified, the cost is reduced, and the power supply reliability is improved.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (10)

1. The utility model provides a full insulation detachable zero clearance arrester of live working which characterized in that includes: puncture formula can load and unload insulating fastener (1), high-voltage lead (2), light-duty insulating cavity (3), metal bracket (4), insulating bracket (5), disconnector link bracket (6), arrester body (9), separator (13) and disconnector (14), the inside of arrester body (9) is equipped with contact piece (19), it is connected with drainage line pile head (18) that continues to go up contact piece (19), the one end of high-voltage lead (2) is connected in the upper end that the drainage line pile head (18) continues, the other end of high-voltage lead (2) connect in on puncture formula can load and unload insulating fastener (1), light-duty insulating cavity (3) inside can be used for fixing arrester body (9), the upper end of arrester body (9) through last contact (7) with last contact piece (19) electricity is connected, light-duty insulating cavity (3) internal fixation has contact piece fixed ring (17), fixed ring (17) is fixed with contact piece (16) on fixed ring (17), fixed ring contact piece (17) is fixed in the one end of metal bracket (4), the other end of metal bracket (4) is fixed with insulating bracket (5), insulator bracket (14) and insulator bracket (9) and insulator carrier (14) can break away from the insulator line, the disconnector (14) is electrically connected to the disconnector connecting support (6), and the disconnector connecting support (6) can be used for fastening to a track rail cross arm.

2. The live-working fully insulated separable gapless arrester of claim 1, wherein: the drainage wire connection pile head (18) penetrates through the top end of the light insulation cavity (3) and the upper contact piece (19) to form a whole in a threaded mode, a rubber sealing ring is arranged between the drainage wire connection pile head (18) and the upper contact piece (19) in a cushioning mode, and an insulation sheath (12) is sleeved outside the drainage wire connection pile head (18).

3. The live-working all-insulated separable gapless arrester of claim 1, wherein: the upper end of the lightning arrester body (9) is provided with an upper insulating waterproof piston ring (8);

the lower extreme of arrester body (9) is connected with contact ring (10), insulating waterproof piston ring (11) down are equipped with to contact ring (10) lower part.

4. The live-working fully insulated separable gapless arrester of claim 3, wherein: the contact ring (10) can be connected with the separator (13), the separator (14) is connected with a lower end screw hole of the arrester body (9) through a stud bolt, and the stud bolt penetrates through the separator (13), the contact ring (10) and the lower insulating waterproof piston ring (11), so that the contact ring is used for realizing the electric conduction from the arrester body (9) to the separator (14).

5. The live-working all-insulated separable gapless arrester of claim 1, wherein: and a plurality of umbrella skirts are arranged on the outer side of the light insulating cavity (3).

6. The live-working fully insulated separable gapless arrester of claim 1, wherein: the separator (14) adopts a thermal explosion separator;

the lightning arrester body (9) is made of zinc oxide.

7. The live-working fully insulated separable gapless arrester of claim 1, wherein: the puncture type detachable insulating wire clamp (1) comprises a drainage wire connecting pile head (1.6) and a metal wire clamp body (1.10);

the drainage wire splicing pile head (1.6) can be used for being connected with one end of the high-voltage lead (2);

be connected with screw rod (1.8) on metal clamp line body (1.10), the top of screw rod (1.8) is fixed with movable line ball piece (1.9), the V-arrangement department of movable line ball piece (1.9) is equipped with three thorn tooth (1.2), thorn tooth (1.2) are stabbed inside the insulated wire, the bottom of screw rod (1.8) is equipped with ring bolt (1.3), screws up ring bolt (1.3) and can drive movable line ball piece (1.9) port automatic closure.

8. The live-working fully insulated separable gapless arrester of claim 7, wherein: a sealing ring (1.7) is padded between the drainage wire connecting pile head (1.6) and the metal wire clamping body (1.10);

the outside cover of drainage wire continuation pile head (1.6) is equipped with pile head insulating boot (1.5).

9. The live-working fully insulated separable gapless arrester of claim 7, wherein: the puncture type detachable insulating wire clamp (1) is provided with an installation hanging ring (1.4);

and a spring washer (1.1) is arranged between the movable line pressing block (1.9) and the top end of the screw rod (1.8).

10. The live-working all-insulated separable gapless arrester of claim 7, wherein: a screw rod outer sleeve (1.12) is arranged on the outer side of the screw rod (1.8), and the screw rod outer sleeve (1.12) can stretch when the annular screw rod (1.3) is screwed;

an insulating sheath (1.13) is arranged on the outer side of the movable wire pressing block (1.9);

a surface insulating layer (1.14) is arranged on the outer side of the metal wire clamping body (1.10);

the outer surface of the annular bolt (1.3) is provided with an outer surface (1.15) of the annular bolt.

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